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Sequence-based signal processing method, signal processing device and computer readable storage medium

A signal processing and sequence technology, applied in the field of communication, can solve the problems of low PAPR requirements of the communication system and good frequency domain flatness, etc.

Active Publication Date: 2019-05-24
HUAWEI TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of this, the embodiments of the present application provide a sequence-based signal processing method, signal processing device, communication system, computer-readable storage medium, and computer program product, which are used to solve the PAPR of the transmitted sequence signal in the prior art. It cannot meet the low PAPR requirements of the communication system and the frequency domain flatness is relatively good, especially when the data channel uses π / 2-BPSK, or the transmitted sequence signal is subjected to frequency domain shaping filtering

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  • Sequence-based signal processing method, signal processing device and computer readable storage medium

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Embodiment Construction

[0050] The embodiment of the present application provides a sequence-based signal processing method, related equipment, and communication system. By determining the sequence used to satisfy the reference signal or control channel transmission signal, the sequence interval can be maintained when the reference signal or control channel is used to transmit the signal. Low cross-correlation, while maintaining low PAPR value and CM value, so as to meet the communication application environment using reference signal or control channel to send signals.

[0051] The terms "first" and "second" in the embodiments, claims, and drawings of the present application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having" are not exclusive. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, and may also include unlisted steps o...

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Abstract

The invention provides a sequence-based signal processing method, signal processing device and computer readable storage medium. The method comprises the following steps: determining a sequence used for meeting a reference signal or a control channel sending signal; wherein the sequence is a sequence [fn] comprising N elements, the fn refers to elements in the sequence [fn], the determined sequence [fn] is a sequence meeting a preset condition, and then the N elements in the sequence[fn] are respectively mapped to N subcarriers to generate a first signal and send the first signal. By utilizing the determined sequence, low cross-correlation between the sequences can be kept, and a reference signal or a control channel can keep a lower PAPR value and a lower CM value, so that a communication application environment for transmitting a signal by utilizing the reference signal or the control channel is met, especially when / 2 <-> is transmitted; And when the BPSK modulates the data signal or carries out frequency shaping filtering on the reference signal or the control channel.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular, to a sequence-based signal processing method, a signal processing device, and a computer-readable storage medium. Background technique [0002] Currently, in the LTE system, there are 30 root sequences {x i}, i=0, 1, 2,..., N-1, N=6, 12, 18 or 24, used for LTE demodulation reference signal (Demodulation Reference Signal, DMRS). In the 5G NR (NewRadio) system, 30 low PAPR sequences with a length of N=12 are defined, which are used to transmit 1 to 2 bits of a reference signal occupying 1 RB or the transmission of a control channel (physical uplink control channel) , can also be used for DMRS transmission of a data channel of 1 RB. [0003] In the NR system, π / 2-BPSK modulation is considered, which is applied to the case of DFT-S-OFDM (Discrete Fourier Transform Extended OFDM) transmission, or applied to a single carrier system. After the signal is modulated b...

Claims

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Application Information

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IPC IPC(8): H04L27/26H04L27/20
CPCH04L27/20H04L27/26H04L27/2613H04L27/262H04L5/0048H04L5/0053H04L5/0051H04L5/0094H04L27/2053H04L27/2607H04L27/2614
Inventor 曲秉玉孙昊
Owner HUAWEI TECH CO LTD
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